The Microsoft Connectivity Analyzer is checking the host autodiscover.XXX.at for an HTTP redirect to the Autodiscover service.

The Microsoft Connectivity Analyzer failed to get an HTTP redirect response for Autodiscover.

Additional Details

An HTTP 401 Unauthorized response was received from the remote Unknown server. This is usually the result of an incorrect username or password. If you are attempting to log onto an Office 365 service, ensure you are using your full User Principal Name (UPN).

HTTP Response Headers:

X-SOAP-Enabled: True

X-WSSecurity-Enabled: False

X-WSSecurity-For: None

Cache-Control: private

Content-Type: text/html;charset=ISO-8859-1

Date: Wed, 17 Aug 2016 10:55:55 GMT

Server: Apache

WWW-Authenticate: NTLM,Negotiate,Basic realm="autodiscover.XXX.at"

X-AspNet-Version: 2.0.50727

X-Powered-By: ASP.NET

Vary: Accept-Encoding

Content-Length: 107

Keep-Alive: timeout=15, max=100

Connection: Keep-Alive

Elapsed Time: 580 ms.

Attempting to contact the Autodiscover service using the DNS SRV redirect method.

The Microsoft Connectivity Analyzer failed to contact the Autodiscover service using the DNS SRV redirect method.

Additional Details

Elapsed Time: 486 ms.

Test Steps

Attempting to locate SRV record _autodiscover._tcp.XXX.at in DNS.

The Autodiscover SRV record wasn't found in DNS.

Tell me more about this issue and how to resolve it

Additional Details

Elapsed Time: 486 ms.

Checking if there is an autodiscover CNAME record in DNS for your domain 'XXX.at' for Office 365.

Failed to validate autodiscover CNAME record in DNS. If your mailbox isn't in Office 365, you can ignore this warning.